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    SubjectRe: [PATCH V4 00/13] Enable per-file/per-directory DAX operations V4
    Date
    Hi, Ira,

    ira.weiny@intel.com writes:

    > From: Ira Weiny <ira.weiny@intel.com>
    >
    > https://github.com/weiny2/linux-kernel/pull/new/dax-file-state-change-v4
    >
    > Changes from V3:
    > https://lore.kernel.org/lkml/20200208193445.27421-1-ira.weiny@intel.com/
    >
    > * Remove global locking... :-D
    > * put back per inode locking and remove pre-mature optimizations
    > * Fix issues with Directories having IS_DAX() set
    > * Fix kernel crash issues reported by Jeff
    > * Add some clean up patches
    > * Consolidate diflags to iflags functions
    > * Update/add documentation
    > * Reorder/rename patches quite a bit

    I left out patches 1 and 2, but applied the rest and tested. This
    passes xfs tests in the following configurations:
    1) MKFS_OPTIONS="-m reflink=0" MOUNT_OPTIONS="-o dax"
    2) MKFS_OPTIONS="-m reflink=0"
    but with the added configuration step of setting the dax attribute on
    the mounted test directory.

    I also tested to ensure that reflink fails when a file has the dax
    attribute set. I've got more testing to do, but figured I'd at least
    let you know I've been looking at it.

    Thanks!
    Jeff

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